Rose

Raw fluorite

Sea urchins tenugui [fivefold symmetry sea urchins]

Sea urchins tenugui [fivefold symmetry sea urchins & bilateral symmetry sea urchins]

Sea urchins tenugui [bilateral symmetry sea urchins]

Immortelle

Dandelion (1.6in cube)

Sea lavender

Dandelion (2.0in cube)

Strawflower

Harpagophytum procumbens

Pterocymbium tinctorium

A species of Sphenodesma

Hiptage benghalensis

Desert rose

Rock crystal

Aragonite

Pyrite

Amethyst

Enterobacteria phage T4

Hexacontium hostile CL.

Volvox carteri

Paramacrobiotus kenianus

Actinophyrys sol